Carbonating-machine.



T. MILLWARD..

VCARBONATING MACHINE. APPLICATION HLED Ndv. 19. 1914.-

2 SHEETSVSHEET 1.

WITNESSES: 11v VENTOR.

a V iHvm L A TTORNE Y.

1m: COLUMBIA PMNOGRAP" c0.. WASHINGTON, D. c.

Patented Mar.'28, 1916.

T. MILLWARD. CARBONATING MACHINE.

APPLICATION nuao uov. 19. 1914.

Patented Mar. 28, 1916.

2.SHEETSSHEET 2- hi5 COLUMBIA PLANOGRAPH THOMAS MILLWA RD, OF SAN FRANCISCO, CALIFORNIA.

CARBONATING-MAGHINE.

Specification of Letters Patent. Patented Blar. 28, 1916.

Application filed November 19, 1914. Serial No. 872,956.

To all whom it may concern:

Be it known that I, THOMAS MLLLWARD, a

citizen of the United States, residing at San Francisco, in the county of San Francisco, State of California, have invented a new and useful Carbo-nating-Machine, of which the following is a specification in such full and clear terms as will enable those skilled in the art to construct and use the same.

This invention relates to a machine for carbonating beverages and its object is to produce a machine which will use as little power as possible above that stored in the tank from which the supply of CO under pressure is obtained.

An embodiment of the invention is shown in the drawing in which the same reference numeral is applied to the same portion throughout, but I am aware that there. are many modifications thereof.

Figure 1 is a side elevation partly in section of the apparatus, Fig. 2 is a side elevation partly in section of one of the check valves used in the apparatus, and Fig. 3 is a side elevation partly in section of one of the mechanically operated valves used in the apparatus.

r The apparatus consistsof a storage-recep-.

tacle 1, a pump cylinder 2, charging cylinder 3 and the frame work 4 and 5 necessary to support the several parts. The pump cyl-. inder has a pipe 6 connected with one end" thereof, which pipe extends into a T 7, which T is connected with a pipe 8 in turn connected with the check valve 9, which latter is connected by means of the nipple 10 to the bottom of the storage cylinder 1, which storage cylinder may be of such dimensions as is deemed necessary.v Also connected to the T 7 is a pipe 11 which extends into the check valve 12.

The check valves 9 and 12 are constructed as illustrated in Fig. 2 with a side plug 13 through which the valve proper Hmay be placed in its seat and said valve is provided with a spiral spring 15 which holds it seated. It is to be observed that-the valve 9 is installed in the position indicated in Fig. 2 so that at any time it is possible for the liquid in the storage tank 1 to pass therethrough to the cylinder 2, while the valve 12 is installed in the reverse position, thereby preventing the liquid in the pipe 16 from being forced downwardly into the cylinder 2, while at the same time leaving the pump piston free except for the pressure in the cylinder 3 to force the fluidup into the charging cylinder A pipe 16 is connected with the charging cylinder near the top thereof and above a set of bafiie plates 17, 18and 19,

which plates areprovided with op'enings to cause the liquid tofpass to the lower portion of the cylinder'in a finely disseminated condition. The cylinder 3 has a pipe 20 which lsconnected bymeans of a suitable union 21 with the pipe 22 leading from the regulating valve 23, which valve isused for determining the pressure in the cylinder 3 of the CO delivered from the tank 24, such tanks being commonly supplied to the trade in a suitably high pressure of several hundred pounds'or more per square inch. i if At the front the cylinder 2 is provided w th a stuffing box 25 through which the piston rod 26 operates, said piston rod having the piston 27 thereon. The piston is operated by means of a lever 28 connected to the piston rod by meansof the link 29, sald lever being supported by a bracket 30 carried by the front endv of the cylinder 2 and projecting. forwardly and upwardly therefrom. 1 i

A pipe 31;connects thebottom of the cylinder 3 with the valve 32. On the opposite side this valve is connected with the pipe 33, which extends around to the front of the cylinder 2, said valve preventing the liquid in the cylinder 3 from passing to the cylinder 2 unless the valve is positively opened by the operatingcams.

Connected with the front'and top of the cylinder 2 is a pipe 34 which pipe extends into the valve 35, said valve being so set as to prevent the escape of fluid from the cylinder 2 unless expressly lifted by its operating cam. At the bottom'the cylinder 2 is providedwith a pipe 36 which pipe extends into avalve 37 substantiallyidentical with the valves 32 and 35 note particularly the interior construction of said valves in Fig. 3. 7 These valves have threaded ends as indicated at 38 and 39 and have a vertically movable valve gate 4L0, which'valve gate is stuffing box 41. The valve gate has suitable guide ribs 13 to: prevent the valve from being misplaced from its proper position when the valve is operated.

The valve 37 is provided with a depending spout 44. Allof the valve stems extend upwardly above the slide rod 45, said slide rod moving along guides 46, 47 and 48. The slide rod has a slot 19 at its front end and on its upper side it is provided with three cams 50, 51 and 52, which cams lift the rollers 53, 5t and 55 carried by the several.

rods 42. It will be observed that therollers 53 and 54 are now shown in the raised position while the roller 55 is shown in the lowered position. It is also to be noted that the length of the slot 19 is determined by the movement of the slide rod necessary to give the movement to the cams to lift the rollers 53 and 55 and by the actual movement of the pin 56 on an operating lever 28 which moves the slide rod.

The operation of the apparatus is as follows; Assuming the receptacle 1 to be of such size as to supply a number of charges of water to the cylinder 2, and the tank 24 to be charged with CO under pressure, it will be seen that in the position indicated in Fig. 1 that the valve on the pipe leading from the bottom of the receptacle 3 is closed. The check valves 9 and 12 respectively open down and up so that on the first stroke of the piston 27 water will flow down through the valve 9 and into the cylinder 2. Near the end. of the stroke the valve 37' and valve 35 will be closed while just after that the valve 32 will be opened thereby making the gas pressures in the receptacle 3 and cylinder 2 equal, the check valve 12 preventing the liquid in the pipe 16 from exerting any pressure on the liquid in the cylinder 2. While the pressure is the same in the receptacle 3 and cylinder 2 the hand lever is operated to transfer the liquid in-the cylin-' der 2 up through the valve 12 and pipe 16 to the perforated plates 17, 18 and 19 Where the liquid will be intimately mixed with the G0,, a portion of said gas going into the liquid. \Vhen the liquid has been transferred while under pressure from one receptacle to the other the valve 32 will be closed, whereupon the snifl valve 35 and valve 37 will be opened in the order named. At this'time the piston may be operated. to draw in a charge of fresh liquid discharging the same quantity of carbonated liquid, or the carbonated liquid may be allowed to run out of the cylinder as it will, afterwhich a charge of fresh liquid may be drawn in and the process repeated at will. As the water or other liquid passes through the baflie plates 17, 18 and 19 it is in a finely divided condition and in that condition absorbs a suliicient quantity of CO to become highly impregnated therewith, and when thepiston is moved to the left it will draw substantially the same amount of carbonated water- 37 is open, thereby permitting it to escape 1. A ca'rbonating machine comprising a pump cylinder, a liquid supply cylinder connected with the pump cylinder, a charging cylinder, a connection from the pump cylinder to the charging cylinder, two

valves interposed between thepump cylinder, the supply receptacle and the charging cylinder, a pipe connection between-the lower portlon of the charging cylinder and the opposite end. of the pump cylinder, a

valve in said connection, an outlet valve con nected with the lowerportion of the pump cylinder, and a pressure relief valve connectedwith' the upper portion of thepump cylinder.

2. A carbonating machine comprising a pump cylinder, a liquid supply cylinder connected with the pump cylinder, a, chargcylinder to the charging cylinder, two valves interposed between the pump cylin der, the supply receptacleand the charging cylinder, a pipe connection between the ing cylinder, a connection. from the pump 7 lower portion of the charging cylinder and" the opposite end of the pump cylinder, a:

valve in said connection, an outletvalve' connected with the lower portion ofthe pump cylinder, a pressure relief valveconnected with the upper portion of the pump cylinder, and means to close the .valvesin the connection between the lower portion.

of the charging cylinder and the pump 5 cylinder and to open therelief valve and the,

discharge valve when a charge of liquid is to be drawn from the pump.

3. A carbonating machine comprising'a;

pump cylinder, a liquid supply cylinder connected with the pump cylinder, a charg lng cylinder, a connection from the pump a cylinder to the charging cylinder, two valves interposed between the pump cylinder,'the

I der, a pipe connection between the lower portion of the chargingcvlinder and the opposite end of the pump' 'cylinder, a valvesupply receptacle and the charging cylin-v in said connection, an outlet valve connected with the lowerportionof' the pump cylin-z der, a pressure relief valve connected with the upper portion of the pump; cylinder, a

supply pipe for the charging gas connected.

with the chargingycylinder, and means to close the valve in the connection between the lower portion ofthe charging cvlinder and the pumpcvlinder and to openthe pres-.

sure relief valve and -the discharge valve when a charge of liquid is to be withdrawn. from the pump cylinder.

4:. A carbonating machine comprising a pump cylinder having a solid piston, an Operating lever connected with said pump piston, a liquid supply receptacle connected with one end of the pump cylinder, a charging cylinder, a connection from that end of the pump cylinder to the charging cylinder, two valves interposed between the pump piston and the three last mentioned valves. 7

5. A carbonating machine comprising a pump cylinder, a solid piston therein, an operating lever connected with said piston for the movement thereof, a liquid supply receptacle, a charging receptacle, suitable valve connections between one end of the pump cylinder and the liquid supply receptack and charging receptacle, a pipe connected with the charging receptacle for the supply of gas under pressure thereto, a pipe connected with the lower endof the charging receptacle and the opposite end of the pump cylinder, a valve in said pipe, a pressure relief valve for the pump cylinder, a discharge valve therefor, and a slide rod for operating the three last mentioned valves from the lever for operating the piston.

6. A carbonating machine comprising a pump cylinder, a liquid supply receptacle.

and a charging cylinder having valved pipe connections with the pump cylinder, a pipe connection for supplying gas under pressure to the charging cylinder, a pipe connecting the lower portion of the charging cylinder and the opposite end of the pump cylinder, a valve in the latter pipe, a pressure relief valve, a discharge valve for the pump cylinder, a lever for operating the pump piston, a slide rod operated by said lever, and cams carried by said slide rod adapted to open the valve in the pipe leading from the charging cylinder to the pump cylinder when the pressure relief valve and the discharge valve are closedand vice versa.

7 A carbonating machine comprising a pump cylinder having a solid piston therein, an operating lever, connections between the piston and operating lever, a liquid supply receptacle,a charging cylinder, pipe connections between the liquid supply receptacle, the charging cylinder and pump cylinder, a pipe for supplying gas under pressure to the charging cylinder, a pipe extending from the lower portion of the charging cylinder to. the pump cylinder, a valve in said pipe, a pressure relief valve in the pump cylinder, an operating slide rod for said valves having a slot therein, which rod is moved near the end of the stroke of the operating lever to open or close the three last mentioned valves.

' In testimony whereof I have hereunto set my hand this 12th day of Nov. A. D. 1914:, in the presence of the two subscribed witnesses. V

' THOMAS MILLWARD.

Witnesses:

CARLos P. GRIFFIN, HENRY B. LISTER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

